void CEditWithButton_Base::DrawButton(CRect rectButton)
{
CWindowDC dc(this);
HTHEME hButtonTheme = OpenThemeData(m_hWnd, _T("Button"));
if (hButtonTheme)
{
int ButtonState = GetButtonThemeState();
// If necessary, first fill with the edit control's background color.
if (IsThemeBackgroundPartiallyTransparent(hButtonTheme, BP_PUSHBUTTON, ButtonState))
{
HTHEME hEditTheme = OpenThemeDataEx(m_hWnd, _T("Edit"), OTD_NONCLIENT);
COLORREF BgColor = RGB(0, 0, 0);
BgColor = GetThemeSysColor(hEditTheme, (GetStyle() & (ES_READONLY | WS_DISABLED)) ? COLOR_3DFACE : COLOR_WINDOW);
dc.FillSolidRect(rectButton, BgColor);
CloseThemeData(hEditTheme);
}
DrawThemeBackground(hButtonTheme, dc, BP_PUSHBUTTON, ButtonState, rectButton, NULL);
DrawButtonContent(dc, rectButton, hButtonTheme);
CloseThemeData(hButtonTheme);
}
else
{
UINT uState = DFCS_BUTTONPUSH;
if (GetStyle() & (ES_READONLY | WS_DISABLED))
uState |= DFCS_INACTIVE;
else if (m_IsButtonPressed)
uState |= DFCS_PUSHED;
dc.DrawFrameControl(rectButton, DFC_BUTTON, uState);
// If the button is in a pressed state, then contents should move slightly as part of the "push" effect.
if (m_IsButtonPressed)
rectButton.OffsetRect(1, 1);
DrawButtonContent(dc, rectButton, NULL);
}
}
void CEditWithButton::DrawButtonContent(CDC& dc, CRect rectButton, HTHEME hButtonTheme)
{
CFont* pOldFont = dc.SelectObject(GetFont());
if (hButtonTheme) {
DrawThemeText(hButtonTheme, dc.m_hDC, BP_PUSHBUTTON, GetButtonThemeState(),
m_ButtonText, m_ButtonText.GetLength(),
DT_CENTER | DT_VCENTER | DT_SINGLELINE, 0, rectButton);
} else {
if (GetStyle() & (ES_READONLY | WS_DISABLED)) {
dc.SetTextColor(GetSysColor(COLOR_GRAYTEXT));
}
dc.SetBkMode(TRANSPARENT);
dc.DrawText(m_ButtonText, m_ButtonText.GetLength(),
rectButton, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
}
dc.SelectObject(pOldFont);
}
